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Biofeedback-assisted relaxation: effects on phagocytic capacity.
Biofeedback and Self-Regulation
|March 1, 1985
Summary
High stress levels are linked to lower immunity. Biofeedback-assisted relaxation (BAR) can enhance immune phagocytic activity and improve coping skills in individuals experiencing high stress and low immunity.
Area of Science:
- Psychoneuroimmunology
- Behavioral Medicine
- Immunology
Background:
- Investigates the relationship between psychological stress and immune system function.
- Examines the impact of stress on phagocytic immune cells.
Purpose of the Study:
- To determine if high self-reported stress correlates with reduced immunity.
- To assess if biofeedback-assisted relaxation (BAR) can improve immune function in high-stress, low-immunity individuals.
Main Methods:
- Phase 1: Assessed stress levels and phagocytic immune function (nitroblue tetrazolium test) categorizing subjects as 'high' or 'low'.
- Phase 2: Randomized 16 'high'-stress, 'low'-immunity subjects into BAR and control groups.
- Evaluated changes in phagocytic activity, white blood cell counts, and self-reported psychological states post-intervention.
Main Results:
- Significant association found between high stress and low immunity (chi-squared test, p < .05).
- BAR intervention significantly increased phagocytic activity (NBT test, F-statistic = 11.11, p < .003) compared to the control group.
- Experimental group reported reduced tension-anxiety and enhanced coping skills; white blood cell counts remained unchanged.
Conclusions:
- Biofeedback-assisted relaxation (BAR) effectively improves coping mechanisms and enhances phagocytic immune capacity.
- BAR influences the quality, not the quantity, of phagocytic neutrophils, suggesting a nuanced effect on immune response.
- This study supports the efficacy of BAR in mitigating the negative immunological effects of chronic stress.